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Defining "doesn't work" would help... Is it the 0xE8000001 error?

Have you set up your code signing distributions properly? You shouldn't be building as 'release', you should be building as 'distribution' as described in the docs on the developer site.
 
You need to create the distribution option yourself. The steps are listed on your program portal.

You also need to be a paid developer ($99/year) to install on your own phone. If you haven't done this, then you can't install them on your device.
 
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